RE: Neuspeed Jetta

["Marc Brown" <Mad_One@msn.com>]

It is true that a K&N cone style filter can cause a power loss because of the 
warm air it pulls in, but the factory air box also pulls in warm air.  There 
is a hinged rubber door on the side of the air box that faces the engine.  
Under hard acceleration, it opens up.

There are a few remedies for the warm air problem caused by the cone style 
filter.  One is to add a cool air intake by mounting a hose behind the grill 
and having it blow directly onto the filter.  In a documented test on 
aftermarket filters in Max Power Magazine on a Ford Cosworth, a 15 hp gain was 
achieved but such a setup over the stock filter box.  Another way to solve the 
problem is to mount the filter behind the bumper, away from the engine.  Such 
tubing systems are used for K&N setups on Honda's, and EIP Tuning offers such 
a setup for the VR6 Turbo.  As long as the filter is mounted in a way that it 
can get cold air, significant power gains are possible.

Marc

95 Jetta GLX

P.S.  If you ever get a chance, go for a ride in a VR6 Turbo, its a trip.  You 
will cut the check instantly if you have the money (and maybe even if you 
don't).